Electronics Forum | Thu Mar 01 12:01:50 EST 2007 | flipit
Anyone ever try this Viromet 247 Sn/Ag/Cu/In aloy from Asahi? It has a reflow temp of 206 or 209 C? Thanks, Chris
Electronics Forum | Wed Jun 27 09:05:18 EDT 2007 | jdumont
Agreed, try slowing the ramp rate down and possibly increasing bottom side temp to 170 if you have that ability. If youre using a hairdryer, youre screwed. Sometimes the 4 degrees C/sec is too fast especially with the FR-4 boardered BGAs.
Electronics Forum | Sat Jul 26 11:17:31 EDT 2008 | manishc
i am facing problem of pcb track lifing at B.G.A. after reflow.we r using lead free paste and fr-4 grade pcb with peak temp.about 270 deg.
Electronics Forum | Fri Apr 29 14:24:25 EDT 2011 | ppcbs
I am looking for immediate stock of a high temp lead free solder ball. 0.60 mm dia. and an Alloy of 95.5% Sn 4.0% Ag 0.5% Cu Any suggestions.
Electronics Forum | Wed Dec 19 09:41:14 EST 2012 | dyoungquist
What is your solder pot temperature? We found that on a 0.093" multilayer board increasing the temp of the lead free solder from 300C to 315C helped with the barrel fill.
Electronics Forum | Wed Aug 03 10:14:59 EDT 2005 | Wonderboy
With oven temps rising due to Lead-Free Processing, I'm looking for some information on high temp Reflow Oven lubricants. I've found some info in the Fine SMTnet Archives on Chain Lubricants, (Mostly Synthetic Motor Oils), but I'm wondering what othe
Electronics Forum | Thu Jun 01 09:31:26 EDT 2006 | marc
All data loggers will be warmer at the higher lead free temps. Only two ways around this... better thermal barriers or fans after the profile to cool it down. Some places do not allow fans on the production floor due to static electricity, in that
Electronics Forum | Fri Mar 19 07:24:29 EST 2004 | pjc
Before "Pb-Free" became an issue we were and still are using Pb-Free component lead finishes- such as on many TSOP, SSOP and QFP packages as well as caps. Components manufacturers changing the lead finish to no-Pb tend to ensure solderability with Sn
Electronics Forum | Mon May 24 15:50:11 EDT 2004 | Rob
hi all What do you think about soldering pb-free in reflow oven (air) lenght 1,7m (5 zones top,bottom) with max zone temp. 300C? Do you think that this process will be stable? Our max PCb dimension 260x260 mm. When i compare different oven producer t
Electronics Forum | Wed Apr 18 09:14:17 EDT 2007 | blnorman
For years all our R&D for high temp applications (automotive underhood electronics) has shown that Pb-free, at our max temps, doesn't have the reliability of SnPb. Fortunately, for us, EoLV (End of Life Vehicle) legislation in Europe was enacted bef
